| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.76 | -0.05 |
| Feb | 0.79 | 0.87 | -0.08 |
| Mar | 1.46 | 1.57 | -0.11 |
| Apr | 2.68 | 2.75 | -0.07 |
| May | 4.06 | 4.07 | -0.01 |
| Jun | 4.34 | 4.30 | 0.04 |
| Jul | 4.28 | 4.26 | 0.02 |
| Aug | 3.98 | 4.06 | -0.08 |
| Sep | 3.24 | 3.22 | 0.02 |
| Oct | 2.77 | 2.83 | -0.06 |
| Nov | 1.50 | 1.60 | -0.10 |
| Dec | 1.02 | 1.12 | -0.10 |
30.83 | 31.41 | -0.58 |